EA-3167 has identical effects to QNB, but is even more potent and longer lasting, with an effective dose when administered by injection of as little as 2.5μg/kg (i.e. 0.2 milligrams for an 80kg person), and a duration of 120-240 hours (5-10 days).[1][2] However unlike QNB, EA-3167 was never weaponized or manufactured in bulk.